摘要
采用CuO/γ-Al2O3和MnO2/γ-Al2O3为催化剂、H2O2为氧化剂,在一连续流固定床反应器中进行了超临界水氧化对氨基苯酚实验。实验结果表明,CuO和MnO2催化剂对于对氨基苯酚的氧化降解具有显著的促进作用。对氨基苯酚的去除率随反应温度和压力的升高、停留时间的延长而提高,在24~26MPa和400~450℃条件下,数秒钟内COD去除率可达到99%以上,催化剂CuO/γ-Al2O3的催化效果优于MnO2/γ-Al2O3。证明了催化超临界水氧化技术的高效性。
Para-aminophenol was oxidized in supercritical water using CuO/γ-Al2O3 and MnO2/γ-A12O3 as catalysts and H2O2 as a oxidant in a packed-bed flow reactor. The results indicated that CuO and MnO2 catalysts had the desired effects of accelerating the para-aminophenol disappearance. The higher elimination of para-aminophenol was obtained at higher temperature, higher pressure and longer residence time. The 99% elimination of COD was achieved at 24~26 MPa and 400~450 ℃ in a few seconds. The catalytic effect of CuO/γ-Al2O3 catalyst was better than MnO2/γ-Al2O3. It showed that catalytic supercritical water oxidation was a better technology.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2006年第4期100-102,共3页
Techniques and Equipment for Environmental Pollution Control
基金
陕西省教育厅基金资助项目(04JK307)
陕西理工学院基金资助项目(SLQ0321)
关键词
催化剂
超临界水
氧化
对氨基苯酚
catalysts
supercritical water
oxidation
para-aminophenol